Temperature Optimized Hydrolysis of Acetic Acid Catalyzed Magnesium Hydride for Hydrogen Generation in a Batch System Hydrogen Reactor

Joshua Adeniyi Adeniran, Romeo Sephyrin Fono-Tamo, Esther Titilayo Akinlabi, Tien Chien Jen

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Citation (Scopus)


Interests in hydrogen storage in magnesium hydride (MgH2) is ongrowing due to its high gravimetric and volumetric hydrogen concentration and less harmful environmental impact of its reaction. This study reports the usage of acetic acid as an accelerator in hydrogen generation experiment via hydrolysis, using a batch system hydrogen reactor. The study was conducted in two phases: investigation of role of substrate weight and catalyst concentration on hydrogen yield and optimization of temperature for hydrogen generation. The study investigated the roles of the organic acids in the reduction of the poor reaction kinetics limitation in MgH2 through the catalytic characteristic of acetic acid. Three acetic acid concentrations were used in the study namely 40, 50 and 60 wt%. Similarly, three substrate weights (0.4, 0.8 and 1.2 g) were investigated for the role of substrate weight on hydrogen yield. Application of the acetic acid accelerated the hydrogen yield across board. Similarly, the hydrogen yield increased with MgH2 weight in the study. The highest hydrogen yield of 0.0189 L was recorded from 1.2 g MgH2 at 30 °C and 50 °C respectively and 50 wt% acetic acid. The lowest hydrogen yield in the study was 0.0048 L hydrogen gas from 0.4 g MgH2 at 50 wt% acetic acid. The experiment conducted at ambient temperature (25 °C) revealed comparable hydrogen yield with higher temperatures.

Original languageEnglish
Title of host publicationTransactions on Engineering Technologies
Subtitle of host publicationWorld Congress on Engineering and Computer Science 2017
PublisherSpringer Singapore
Number of pages11
ISBN (Electronic)9789811321917
ISBN (Print)9789811321900
Publication statusPublished - 1 Jan 2018


  • Acetic acid
  • Hydrogen generation
  • Hydrolysis
  • Reaction kinetics Temperature optimization
  • Thermodynamics

ASJC Scopus subject areas

  • General Engineering
  • General Chemistry
  • General Chemical Engineering
  • General Mathematics


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